“Accessible Travel Supporting Organization in Japan” 日本バリアフリー観光推進機構
http://barifuri.jp/data/tabibari/barifuri.pdf
Japan Accessible Travel Organization published “Tabibari” guidebook in 2013 (written in Japanese only). “Tabi” is Travel and “bari” is barrier free. They present their concept about the accessible tourism and how and where they can help accessible/barrier-free traveling in Japan.
Maybe they will issue the booklet in multilingual in future…